Web based app with iPad functionality

I'm a school improvement partner and visit lots of different schools. During my visits, I take notes and then write up a record of visit afterwards that I send to the headteacher for a factual accuracy check. I sometimes also share the report with other professionals as required.

I'm looking for the very cheapest price to create a web-based portal (something very simple) that allows me to complete a record of visit form after each visit which then turns into a nice professional looking record of visit on a branded template that can be printed or viewed as PDF or similar. The fields I would typically need are date of visit, school name, consultant name, headteacher name, context, activities undertaken, key findings (where I can detail in bullet points or prose), recommendations/next steps and next visit date.

Ideally, I'd like the headteachers in each school to be able to be sent a link where they can see their record of visit online and suggest any factual inaccuracies that I can resolve and finalise. It would be handy if they could log in to see their different records of visit all in one place or follow an individual link where all their records of visit are housed in one place rather than being reliant on sending word attachments on email each time and the records of visits all being all over the place.

Interested to find out how much this would cost. It doesn't need huge amounts of functionality other than what I've outlined above.

I'd like to be able to access the portal on an iPad as well. Doesn't need to be a separate app but the ability for me to access record of visit form on an iPad during a visit so I can type my notes straight into it.

Thanks,

Shaun